Value Stream Mapping
Creating a visual picture of the 'Current State' or how material and information flows from suppliers through manufacturing and to the customer. Total lead-time, process cycle times and value-added times are measured. The Future State is created based on goals desired based on market conditions and strategic planning for the business.
This is an example of a high level Value Stream Map from the process of growing potatoes to their delivery to the customer as a bagged potato snack:
Potato snack Value Stream Map